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Message:: [QUOTE="mkeane911, post: 511245, member: 17110"]Daggerjon, The main focus of my collection is error notes and experimental notes. The notes I have listed below are all experimental notes with the execption of the back plate number ones. A group of experimentals was printed in Series 1935. Again the test involved three batches of notes: one on paper with a special finish, numbered A 000 00001 B through A 061 80000 B; one on special paper, numbered B 000 00001 B through B 033 00000 B; and a control group on regular paper numbered C 000 00001 B through C 033 00000 B. These serial number ranges are above any others used on Series 1935, but they do fall within the ranges used for Series 1935A One print run of Series 1963 $1 FRNs was produced on experimental paper, but it was not identified by either special serial numbers or distinctive markings. In this case, the BEP's purpose was not to test a different paper composition, but to test the ability of a new supplier, the Gilbert Paper Company, to duplicate the usual currency paper. The notes involved in this test were numbered C 608 00001 A through C 614 40000 A. No additional paper was ordered from the Gilbert Co., but the option was left available in case the BEP's usual supply of paper was ever interrupted. A similar experiment took place in 1981, when the BEP produced a few print runs of notes on Natick security paper. The notes involved were Series 1977A $1's with serial numbers E 768 00001 H through E 806 40000 H and E 070 52001 * through E 076 80000 *. (Note that many references incorrectly list this star range as Philadelphia instead of Richmond.) One run of $10 Star Notes was also included in this paper test, making it the only experimental printing so far not restricted to the $1 denomination. A more recent example of an experiment involving $1 notes was the trial use of a web-fed printing press in the mid-1990s. Unlike the earlier experiments, in this case it was the printing technique and not the paper that was changed. Also, the number of experimental notes released for circulation was much larger than in the previous instances, as tests continued over a period of several years. For some background on the web press, and a table of the serial number ranges of the notes printed on it The 1974 $1.00 BP905 (Back Plate 905) engraving ERROR note is the result of the leading 1 being dropped as the BP905 should have been BP1905. As this was found late in the collecting cycle, very few of these are known to exist. It is reported that maybe 5 blocks exist - 4 regular blocks and only 1 star block (J*). The 1988A $1.00 FW106 front plate engraving size ERROR note is probably the first ERROR note from the new Fort Worth (FW) Western Facility. These were printed soon after the new FW Facility was up and running on a limited and shakedown and learning phase in June and July 1991. With early limited production runs, there are very few of these ERRORs around and are only known in 3 blocks - the LE, LF and the first group printing of the L*. The Engraving ERROR is the front plate FW106 has the 106 engraved larger than all the other FW front plate numbers. Unlike the popular FW295 back plate ERROR notes which were printed in high quantities and about a dozen blocks and many, many combos, these were only printed in 3 blocks and 15 combos. The known front plate sequences are as follows: 111, 35, 105, 106; 106, 53, 61, 55; 111, 35, 103, 106. 1977A -$ 1 Federal Reserve NoteE 768 00001 H through E 806 40000 H E 070 52001 * through E 076 80000 * 1963 -$ 1 Federal Reserve NoteC 608 00001 A through C 614 40000 A 1935 - $1 Silver CertificateA00000001 - A06180000B00000001 - B03300000C00000001 - C03300000 1981A & 1985 129 Backplate ErrorThe Back Plate Number is on the Left Hand side, on the back of the bill as opposed to the rigth hand side. 1974 $1With a Back Plate number of 905[/QUOTE]

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